A woman who assisted white supremacists David "Joey" Pedersen and Holly Ann Grigsby before and during their 2011 murder spree was sentenced Wednesday to five years of probation.

Senior U.S. District Judge Garr King accepted the probation term negotiated between federal prosecutors and the attorney for defendant Kimberly Scott Wyatt, 32, who pleaded guilty in April to being an accessory after the fact to interstate transportation of a stolen vehicle. Wyatt, at her husband's behest, helped Pedersen and Grigsby dispose of a Jeep belonging to Pedersen's father, who was the first of four people killed by the couple. The man's body was still in it at the time, according to court papers.

Wyatt offered a tearful apology before being sentenced in federal court in Portland, saying she was "truly sorry" and that she "never would have ever imagined anything like this happening."

Although Wyatt pleaded guilty only to the accessory charge, she admitted buying the gun that her husband, Corey Wyatt, then gave to Pedersen in September 2011. The gun was the weapon Pedersen and Grigsby used to kill David "Red" Pedersen and two strangers – Cody Faye Myers of Lafayette, who was killed after agreeing to give the couple a ride in the Newport area, and Reginald Alan Clark of Eureka, Calif., who was killed after he similarly agreed to give them a ride.

A fourth victim, Pedersen's stepmother, Leslie "DeeDee" Pedersen, was killed with two knives.

Wyatt is the second of three defendants to be sentenced in a complicated three-way plea deal involving Kimberly Wyatt, Corey Wyatt and Pedersen. Corey Wyatt has already been sentenced to seven years and five months in prison for transferring a firearm to a known felon and on the same accessory charge as his wife. His sentence is half the term prosecutors were planning to recommend.

But the plea agreement for all three has salvaged a case in danger of crumbling because of alleged failures by the lead detective. Although Pedersen has openly admitted to the killings, the prosecution has been marred by allegations that Oregon State Police Det. Dave Steele failed to log evidence, write reports and obtained dozens of recordings of jail calls between defendants and their defense teams.

Steele has asserted his 5th Amendment rights and is under federal investigation.

Under the interlocking plea agreement, Pedersen would receive two life terms for pleading guilty to two counts of carjacking resulting in death and drops his challenges to the government. His sentencing hearing is scheduled for Monday.

If the judge overseeing that case rejects the plea or sentence, then the agreements for all three defendants would be canceled.

Kimberly Wyatt has had a difficult life of abuse, her court-appointed attorney Noel Grefenson said in a sentencing memorandum, and she acted under the direction of her husband and Pedersen, he said. The prosecution served as a "serious wake-up call" for her, he said.

King wished her good luck. But at the request of Assistant U.S. Attorney Hannah Horsley, he cautioned Wyatt that she must refrain from communicating with convicted felons as part of her probation.

Wyatt has three children and is pregnant with a fourth, all of whom have different fathers. At least three of the fathers are convicted felons, including her estranged husband, Corey Wyatt, Horsley noted.

"You are not to associate with any felons," King said to her, even if they are the fathers of her children. "Do you understand that?"